2 × 3² × 21943

Prime Factor Structure

Factorization String 2 × 3^2 × 21943

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 855,816

Proper Divisor Sum 460,842

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #394969 ← → #394981

1 2 3 6 9 18 21,943 43,886 65,829 131,658 197,487 394,974

Iterative sequence n → n/2 (if even) or 3n+1 (if odd):

394,974 197,487 592,462 296,231 888,694 444,347 1,333,042 666,521 1,999,564 999,782 499,891 1,499,674 749,837 2,249,512 1,124,756 562,378 281,189 843,568 421,784 210,892 105,446 52,723 158,170 79,085 237,256 118,628 59,314 29,657 88,972 44,486 22,243 66,730 33,365 100,096 50,048 25,024 12,512 6,256 3,128 1,564 782 391 1,174 587 1,762 881 2,644 1,322 661 1,984 992 496 248 124 62 31 94 47 142 71

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